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Figure 3: KMSA curves representing the time course of the probability of survival for BODS categories (long rank test; P< 0.001). BODS=Body mass index, airflow obstruction, dyspnea scores and pack years, KMSA=Kaplan–Meier survival analysis

Figure 3: KMSA curves representing the time course of the probability of survival for BODS categories (long rank test; <i>P</i>< 0.001). BODS=Body mass index, airflow obstruction, dyspnea scores and pack years, KMSA=Kaplan–Meier survival analysis